Assig-nob to himself



(No Model.)

M. LALLY.

Elevato Bucket.

l N0. 233,523.v Patented OC. 19, 1880.

\/\/IT HE 8 SE 5: Mfg/M,

fm/MT MPETEHS. FHOTO-IJTHGRAPMER. WASHINGTON D C MICHAEL LALLY, OE NORTH LAWRENCE, OHIO, AssICNOR TO HIMsELt` AND wILLIAM'J. ERYER, OE NEw YORK, N. Y.

ELEvAToR-BUCKET.

SPECIFICATION forming part of Letters Patent No. 233,523, dated October 19, 1880.

Application led August 30, 1880. (No model.)

To all whom it may concern:

Beit known that I, MICHAEL LALLY, a citizen of the United States, residing at North Lawrence, Stark county, in the State of Ohio, have invented certain new and useful Improvements relating to Elevator-Buckets, of which the following is a specification.

The invention applies to all that class ofelevators in which a series ot` scoops or buckets are elevated successively bybcin g attached to one or more endless belts or chains, which, being held in an upright or inclined position and driven continuously by any suitable power, are successively plunged into the mass of `grain or analogous material and filled and carried up and emptied at the top. As these devices are ordinarily arranged a difficulty is found in the emptying. The buckets traverse smoothly up in a position which allows them to remain nearly full but when they reach the upper pulley and the belts or chains com-A mence to incline thereon the material is liable to be discharged too soon and to be spilled in wrong directions. My invention is intended to obviate this difticulty.

I have changed -the form ot' the buckets and attached wings or guides, so that each bucket forms a spout to receive and guide the material discharged from the succeeding one, and l provide a peculiar mode of connection of the bucket to the belts or chains, which allows each bucket to remain in the upright or slightly inclined position to a late period, and causes it then to tilt suddenly, so as to project its contents in the proper direction.

The following is a description of what I consider the best means of carrying out the invention.

The accompanying drawings form a part of this speciiication.

Figure l is a side elevation of the upper part of an elevator constructed according to my invention. Fig. 2 is a front elevation ot' a portion, and Fig. 3 is a perspective view of one of the buckets.

The drawings represent the novel with so much of the ordinary parts as is necessary to indicate their relation thereto.

Similar letters of reference indicate like parts in all the figures. Y

I will describe the invention as applied in elevating grain, and as using chains for the flexible endless parts to which the several buckets are attached, and by which they are moved. The structure in which the elevatorpulleys are supportd and the engine or other means by which the pulleys are rotated may be of any ordinary or suitable description.

Bis the top pulley. C is one of a set of idle pulleys, which serve to guide the buckets in their ascent and descent. D D are the chains, which may be operated by suitable teeth or sprockets projecting from the pulley B. Each chain D supports a pivot or trunnion,g, projectingfrom the side of the bucket G.

The buckets are all alike. A description of one will suftice for the whole. Each bucket is of V-shaped section. The trunnions g, which support the main portion ot' the weight, are below the center of gravity of the filled bucket.

I is a loose bolt having a suflicient head in the interior of the bucket, and engaged with a cross-bar, H, riveted or otherwise fastened across between the chains D, above the line of trunnions.

The outer inclined face ot' the bucket is formed with wings extending longitudinally up and down at the sides, as indicated by G. The bucket can turn to a limited extent on the trunnions g, so that its upper inner edge may lie tight against the chains, or mayswingaway therefrom as far as is allowed by the bolt I. The inclined face of the bucket, which is farthest from the chains, is plane. The other side of the bucket, adjacent to the chains, is swelled.

The cross-bar H is of considerable width, and is welded or otherwise secured to the proper links of the chain D in such position that its upper edge projects above the upper inner edge of the bucket which it mainly serves. The upper edge serves the preceding bucket by receiving the bottom thereof and preventing the bottom from moving too far inward. This is important in holding each bucket in its proper upright position while being elevated, and does not interfere with the tilting of the bucket in the right direction to empty when it arrives in the proper relation to the upper pulley.

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In the operation of theinvention each bucket discharges its contents, not directly into the spout orvessel which is to convey it away,but into the trough-like channel w between the plates or wings G on the outer face of the preceding bucket. The wings perform a useful function by receiving the stream of grain from the preceding bucket, and leading it in a smooth stream along the channel thus provided, and leaving it at a considerable distance out from the chains with a projectile force tending to carry it still farther' out. The bellied face of each bucket is presented downward in the act of emptying, and the form tends to concentrate the stream in the central line, so that the stream of grain from one bucket is smoothly conducted into the center of the channel across the outer face of the preceding bucket. The loose bolt I, by allowing each bucket to tilt slightly on its trunnions g, allows each bucket to maintain an upright position after its carrying-chains have commenced to be deliected over the top ofthe pulley. Vhen the period arrives that the play provided bythe bolt I is all taken up the cross-bar H is traveling away over the pulley with arapid lateral movement. It then pulls on the bucket, and by its rapid movement tilts the bucket, which, having its center of gravity considerably above the trunnions g, tilts vigorously and projects its contents'with a rush, throwing them into and through the channel w, provided between the wings G ou the preceding bucket.

My invention may be used with advantage in a great variety of situations. It may be worked on portable apparatus where the elevator is liable to be worked at various degrees of inclination; but I esteem it preferable on elevators in xed positions, either upright or inclined.

The rounding of the inner face ofthe bucket might be continued all the way down, if desired 5 but I esteem it preferable to preserve the general iiat form, and to retain the ordinary flat side of the bucket with the strength and general desirability of that form, and to produce l[he round condition by adding on the inside, as represented. These additions are formed by properly-cut pieces ot' sheet metal riveted or otherwise reliably secured in place, and require no particular description. They preferably extend downward a little distance, gradually dying out into the angular form of the corner of the bucket. For most uses they may extend about half the depth of the bucket, terminating gradually in a point, so that no grain or other material being worked by the elevator will be retained by it. rEhis rounding ofthe corner on the interior subtracts but little from the capacity ot the bucket, but it greatly aids in throwing the grain in a concentrated stream on its discharge.

Modifications may be made in many ot' the details. In addition to the rounding of the edge or side nearest the chains, or independently thereof, I can narrow the mouth of each bucket, so that the grain or other material will,l

by necessity, be projected in a narrow stream while the wings G are wider apart, so that each can receive the stream from its successor centrally and without spilling. The side of leach bucket farthest from the belt or chains may be hollowed, so as to partially inclose the channel w within the bucket. The loose fastenin g I may be duplicated or triplicated.

Part ot' the invention may be used without the whole. The bucket formed as shown, and provided with the channel, as shown, along the face, may serve in good degree in the same manner as above provided without the provision for the turning ot' the bucket on the trunnions.

I claim as my inventionl. The elevator described, having, in combination with one or more endless chains, a series of buckets closely following each other, formed with wings G', so that in the act of discharging the contents ot' each bucket iiow longitudinally along a channel, w, on the outer face Of the preceding bucket, as and for the purposes herein specified.

2. As an improvenientin elevators, the combination, with belts or chains D and pulleys C, of the buckets G, turning on trunnions'g below their centers of gravity, and having loose connections I, securing the upper portions of the buckets to the chains, all arranged to serve as and for the purposes herein specified.

3. rEhe elevator-bucket described, having a V-shaped form with a channel, w, on its outer face, and with the inner edge or side next the chain rounded, so as to discharge the load mainly in the central line, as herein specified.

In testimony whereof I have hereunto set my hand at New York city, New York, this 19th day ot' August, 1880, in the presence of two subscribing witnesses.

MICHAEL LALLY.

Witnesses:

CHARLES C. STE'rsoN, H. A. JorINstroNE.

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